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gpiolib-acpi: Fix error checks in interrupt requesting

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Print error message if requesting an interrupt fails.
Use int instead of unsigned for interrupts in case of error values

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Mathias Nyman 2013-02-04 11:32:22 +02:00 committed by Linus Walleij
parent de0ccf7881
commit 1107ca104f
1 changed files with 7 additions and 2 deletions
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9
drivers/gpio/gpiolib-acpi.c
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@ -83,7 +83,8 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
struct acpi_resource *res;
acpi_handle handle, ev_handle;
acpi_status status;
unsigned int pin, irq;
unsigned int pin;
int irq, ret;
char ev_name[5];
if (!chip->dev || !chip->to_irq)
@ -126,11 +127,15 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
continue;
/* Assume BIOS sets the triggering, so no flags */
devm_request_threaded_irq(chip->dev, irq, NULL,
ret = devm_request_threaded_irq(chip->dev, irq, NULL,
acpi_gpio_irq_handler,
0,
"GPIO-signaled-ACPI-event",
ev_handle);
if (ret)
dev_err(chip->dev,
"Failed to request IRQ %d ACPI event handler\n",
irq);
}
}
EXPORT_SYMBOL(acpi_gpiochip_request_interrupts);